Aluminium nitride (AlN) yog cov khoom sib xyaw ua ke ntawm txhuas thiab nitrogen, thiab nws nthuav tawm ntau yam khoom nthuav dav uas ua rau nws muaj txiaj ntsig hauv ntau yam kev siv thev naus laus zis.
Chemical Composition thiab Structure
Aluminium nitride yog binary compound uas muaj txhuas (Al) thiab nitrogen (N). Nws crystallizes hauv hexagonal wurtzite qauv, zoo ib yam li zinc oxide (ZnO) thiab gallium nitride (GaN).
Lub cev muaj zog
- Ceev
Aluminium nitride muaj qhov ntom ntom ntom, nyob ib puag ncig 3.26 g / cm³, ua rau nws muaj zog thiab ruaj khov hauv ntau daim ntawv thov.
- Melting Point
Lub melting point ntawm AlN yog kwv yees li 2,220 degrees Celsius, qhia txog nws qhov kub thiab txias stability.
Thermal conductivity
Aluminium nitride yog renowned rau nws zoo heev thermal conductivity. Nws muaj ib qho ntawm cov thermal conductivities siab tshaj plaws ntawm cov hlau tsis yog hlau, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau cov ntawv thov uas siv cov cua sov kom zoo yog qhov tseem ceeb, xws li hauv kev tsim cov khoom siv hluav taws xob ua tau zoo.
Hluav taws xob rwb thaiv tsev
AlN yog ib qho hluav taws xob insulator, txhais tau tias nws tsis ua hluav taws xob. Cov cuab yeej no muaj txiaj ntsig zoo hauv cov ntawv thov hluav taws xob thiab cov khoom siv hluav taws xob uas cov khoom siv hluav taws xob zoo yuav tsum tau tiv thaiv cov tsis xav tau tam sim no lossis luv luv.
Wide Bandgap
Aluminium nitride yog ib tug dav bandgap semiconductor nrog ib tug bandgap zog ntawm kwv yees li 6.1 electron volts. Cov yam ntxwv no ua rau nws haum rau kev siv hauv optoelectronics thiab cov khoom siv hluav taws xob siab.
Piezoelectric Khoom
AlN nthuav tawm cov khoom muaj zog piezoelectric, txhais tau tias nws tuaj yeem tsim hluav taws xob los teb rau cov neeg kho tshuab kev ntxhov siab thiab rov ua dua. Cov cuab yeej no yog siv rau hauv kev tsim cov sensors, resonators, thiab actuators hauv ntau lub tshuab hluav taws xob.
Tshuaj Stability
Aluminium nitride yog tshuaj ruaj khov, tiv thaiv cov tshuaj tiv thaiv nrog ntau cov kua qaub thiab cov hauv paus. Qhov kev ruaj ntseg no txhim kho nws qhov tsim nyog rau kev siv hauv ib puag ncig hnyav thiab cov txheej txheem tshuaj.
Optical Transparency
Thaum tsis pob tshab hauv qhov pom spectrum, aluminium nitride yog pob tshab hauv ultraviolet (UV) ntau yam. Cov cuab yeej no muaj txiaj ntsig zoo hauv UV optoelectronic li thiab kev siv.
Compatibility nrog Silicon Technology
AlN muaj kev sib raug zoo nrog silicon thev naus laus zis, ua rau nws muaj txiaj ntsig rau kev koom ua ke rau hauv cov khoom siv semiconductor. Nws tuaj yeem siv ua ke nrog silicon substrates, ua kom txoj kev loj hlob ntawm cov tshuab hluav taws xob thiab optoelectronic.
Kev siv ntawm Aluminium Nitride
Kev sib xyaw tshwj xeeb ntawm cov khoom hauv txhuas nitride ua rau nws xaiv cov khoom siv hauv ntau yam kev siv, suav nrog cov dab dej kub, cov khoom siv hluav taws xob muaj zog, LEDs, thiab cov khoom siv microwave. Nws kuj pom cov ntawv thov hauv kev lag luam aerospace, qhov twg nws cov thermal stability yog qhov tseem ceeb.
